Ring mounted Gun Systems are a complete solution manufactured by AEI Systems. The lightweight AE20-VM2 Aluminium gun mount is counterbalanced to minimise intrusion into the crew served area and provides traverse and high elevation movement. The gun mounts are assembled to a manually operated slewing ring providing 360 degrees traverse. A backrest, manual gearbox, ring locking brake, backrest and freewheel handgrips are fitted to the slewing ring. Optional protective shields are available in Steel or composite armour materials.